Samsung DMT800 Dishwasher Fast Track Service Manual

8/19/2019 Samsung DMT800 Dishwasher Fast Track Service Manual

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CN101 Power1 Ground (Yel/Grn)3 120vac N (Yel)5 120vac L (Blk)

CN3021-Half Load Sense (Blk)2-Turbidity Transmitter (Red)3-Trubidity Receiver (Vio)4-Ground(Org)5 + 5vdc (Pnk)

6-Rinse Sense (Yel)CN3011-Water Level Sensor (Brn)2-Water Level Sensor (Red)3-Water Level Sensor (Yel)4-Water Level Sensor (Gry)5-Overflow (S/Blu)6-Flow Meter (Vio)7 +5vdc (Pnk)8-Leakage Sensor (Wht)9-Thermistor (Blk)10 +12vdc (Blu)11-Door Sense (Blu)

CN2011-(CN101-3) Disp Wax Mtr (Wht-Yel) 120v3-(CN101-3) Half Load (Vio-Yel) 120vac

5-(CN101-3) Fan Mtr (S/Blu-Yel) 120vac7-(CN101-3) Wash Mtr (Blu-Yel) 120vac9-(CN101-3) Wash Mtr (Wht-Yel) 120vac

CN2021-(CN101-3) Valve (Brn-Yel) 120vac5-(CN101-3) Pump (Org-Yel) 120vac

CN1021-6 (S/Blu-S/Blu) +5vdc2-6 (S/Blu-S/Blu) +12vdc CN501

3-1 +5vdc

T202-(CN101-3)Heater (Red-Yel) (120vac)

T201 L1 ((120vac)

Assy Case Vent

Assy Dry Duct

Assy Duct Condenser

Dry System

Storm wash Nozzle

Single rear leg isadjustable fromfront. Retract to

remove D/W

Air Intake

Double Shaft Mtr

Air Exhaust

Sump & Heater

Main PCB

Main PCB is locatedbehind bottomaccess panel

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Leaking Code

Moisture creates resistance between the pins. ALWAYS clean the area below the pins after troubleshooting.

Check Pump Ass’y for proper twist lock.

Condensation may form on the tray from uninsulatedoutside walls or large hole in the floor to a cold basement.

Check Drain Hose for cut or small hole.

Check all components mounted to the sump for anyleakage.

Detergent Door Not Opening

1. Never overfill the dispenser compartment with powder or liquid, only go below or up to fill line. 2. If there is residue around the dispenser door area. Previously undispensed, partially dispensed, or door stuck closeissue) clean it with mild soap & water. The residue can foul the mating latch.

3. If the customer uses “tablets” or some self contained type of soap tab, make sure it is fully seated and the door doesnot ‘sandwich’ it shut. 4. Make sure that in the rack nearest to the dispenser door when the door is shut, is not obstructing the opening of thedispenser with some protruding utensil.

Testing The Detergent Door and Dispenser1. Disconnect wires from disp. & close detergent door. 2. Connect Fused cheater cord and apply 120vac

3. In approximately 40 seconds the wax motor will open the door. 4. Remove power, allow wax motor to return. 5. Restore power to wax motor, in approximately 40 seconds the rinse aid willbe activated. Remove power. 6. Close detergent door to repeat test

Upper Nozzle : Remove it by rotat-ing the holder. (counterclockwise)

Middle Nozzle : Remove it by rotat-ing the holder. (counterclockwise)

Lower Nozzle : Pull it out carefullyfrom the Assy sump.

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Codesym-bol

Meaning Occurring condition Expected condition

Temp sen-sor

Error

When 0.2V or below, or 4.5V or above is main-tained for over 3 seconds

Thermistor terminal is not connecte

Possible defect : Thermistor , MainPBA

HE HeaterError

When the temperature change is 4

or lesswithin the first 10 minutes after the heatingstarts

Heater terminal is not connected Possible defect : Main Wire-HarnesHeater, Main PBA

1E High tempHeatingerror.

When the temp of the Thermistor is 80 orabove for more than 3 seconds during opera-tion.

Water temp is 80 or above

Possible defect : Thermistor , MainPBA

9E Low-levelwatererror

1.When high level sensor is not detected afterwater supply was done, drain & refill thewater. After then, if high level sensor is notdetected again, this error is occurred.

2.When low level sensor is detected over 5 sec-onds during wash operation, this error is

occurred.

Water Level Sensor terminal is notconnected

Possible defect : Assy case sensorWater Level Sensor , Main PBA

PE Half loadfunctionerror

When micro s/w is not detected for over 30 sec-onds after the Distributor motor starts

Distributor motor defect

Micro SW terminal is not connected

Main PBA defect

4E Watersupplyerror

1. When the pulse of 100 or less is detectedeven 73 seconds after the water supply

2. When flow meter pulse is 5 or less for 13 sec-onds after the water supply starts

3. When the water supply is not finished until 6minutes after the water supply starts

Alien particles within water supplyvalve

Water supply valve terminal not connected

Possible defect : Main PBA, Watersupply valve , Flow Meter

3E High tempWatersupplyerror

When 80 or above is detected during watersupply Water supply temperature is 80

orabove

Possible defect : Thermistor, MainPBA

5E Drainerror

When OFF status of Low Level S/W is not de-tected within 3 minutes during the drain.

Alien particles are clogging in drainhose

Drain pump terminal is not connecte

Possible defect : Drain pump, WaterLevel Sensor , Main PBA

oE Over-levelwater er-ror

When overflow detection AD data is 3.5V or be-low for 3 seconds

(When leakage sensor detects 3.5V or below for

1 seconds during water supply)

Alien particles within water supplyvalve

Case Sensor part breakdown

Possible defect : Flow Meter, MainPBA, Water supply valve

LE Leakage

When leakage sensor detects 3.5V or below for1 seconds

Possible defect : Each hose connection , Sump and Tub assembly, DraPump assembly , Main PBA

bE Buttonerror

When the button is pressed continuously forover 10 seconds

Possible defect : Sub PBA in contropanel, Main PBA

dE Door openwarning

When door is open in washing period. Door is not close properly in testmode only. Possible defect : Door lock switch,Main PBA

Error Codes - DMT800 series

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• Press the ‘Heavy’ + ‘Delicate’ + ‘Power’ buttons at the same time for two seconds to enter Service Inspection Mode.

• All LEDs are displayed for the first two seconds and then Software-Ver. will be indicated.

• You can change the mode by pressing the Normal button again. If press the Normal button in this mode, the modewill be changed to next mode.

• If you want to activate a mode while operating the dishwasher, the door must be closed.

• If ‘LE’ , ‘OE’, ‘tE’ error occur, enter Service Inspection Mode after resolving it.Service Inspection Mode is described in the following table.

SVC inspection Mode- DMT800 series

Mode Display RelatedParts

Symptoms Note

No.1 Ft •Drain

pump •Inlet

Valve •Flow

Meter •WaterLevel Sen-

sor •Turbidity

Door open warn-

ing Water supply

Error Low level water

Error Turbidity Error

If Door is open, Door open warning (dE) will blink. If low level sensor is not detected, Drain is executed. Water supply will be

executed when low level sensor is detected. If water is not fully supplied (sensing on flow-meter), the Water Supply Erro(4E) will blink. When high level sensor is not detected after water supply was done, Low-

level water error (9E) will blink. When Turbidity problem is occurred after water supply was done, Turbidity

Error (AE) will blink. If all functions in this mode are completed, ‘Ft’ and ‘3.6~3.9’ will blink.

No.2 Lc •Circulation

Motor A nozzle does notinject water.

If Low Level sensor is detected before Circulation Motor is operating, ‘LL’and ‘Lc’ will blink. When water is filled enough, Circulation Motor -2(190W) will be operated.

No.3 Ld •Circulation

Motor A nozzle does notinject water.

If Low Level sensor is detected before Circulation Motor is operating, ‘LL’

and ‘Ld’ will blink. When water is filled enough, Circulation Motor- 1(150W) will be operated.

No.4 Hd •Circulation

Mo-

tor •Heater •T

hermistor

•Dis penser

Heater Error If Low Level sensor is detected before Circulation Motor is operating, ‘LL’

and ‘Hd’ will blink. When water is filled enough, Circulation Motor 1(150W) and Heater will be

operated. ‘Temperature[]’ and ‘Hd’ will blink. When the temperature meet 60 or above, the heater is turned off. If Heater or Thermistor have problems, the Heater Error (HE) will blink. Dispenser will operate during 130 seconds only one time.

No.5 SH •Half Load

Motor Half load func-tion Error

If Low Level sensor is detected before Circulation Motor is operating, ‘LL’

and ‘SH’ will blink. When water is filled enough, Half Load Motor will be operated, and thenHalf load function will be operated.

No.6 SP •Half Load

Motor

Storm wash func-

tion Error If Low Level sensor is detected before Circulation Motor is operating, ‘LL’

and ‘SP’ will blink. When water is filled enough, Half Load Motor will be operated, and then

Storm wash function will be operated. No.7 dF •Dry Fan

Mtr •Dispens

The Dry Fan mo-tor does not work.

Operate the Dry Fan Motor and check whether Rinse aid is filled or not. If there is not rinse aid in Dispenser, Rinse Refill lamp is ON.

No.8 L •Inlet

valve •Overflow

Sensor

Over level wa-ter Error

Water is supplied until Over-level water error (oE) is blinked. If Over-level water error (oE) occurs, overflow sensor is OK.

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SVC inspection Mode- DMT800 series

Mode Display Related Parts Symptoms Note No.9 S •Drain

Pump •Water Level Sen-

sor

Drain Error Drain pump will drain until low level sensor is detected. If Low level sensor is not detected after 60 seconds, Drain Error (5E)

will blink.

No.10 FL •Half Load

Motor Half load

function Er-

ror

Buzzer sound is generated when the Half Load Motor is initialized to

full load location, and the 'FL' will blink.

No.11 Temp •Inlet

Valve •Circ

ulation Mo-tor •Dry FanMo-

tor •Drain

Pump •Heat

er •Half

Load Motor

Operate each operating part when the key is pressed. (See the below) When the 'Quick' Key is pressed Water supply is On('Quick' LED On)

and pressed again it is Off ('Quick' LED Off) When 'Heavy' Key is pressed each time, it works the Circulation Motor-1 is On ('Heavy' LED On) -> Off ('Heavy' LED Off) -> Circulation Mo-

tor-2 is On ('Heavy' LED On) -> Off ('Heavy' LED Off) -> Dry Fan

Motor is On ('Heavy' LED On) -> Off ('Heavy' LED Off), Drain Pumpis On ('Heavy' LED On) -> Off ('Heavy' LED Off). When 'Delicate' Key is pressed, it woks Heater On ('Delicate' LED Onduring 2 seconds) and Off automatically. When 'Half Load' Key is pressed Half Load Motor is On('Half Load'

LED On) and pressed again it is Off('Half Load' LED Off). When a different key is pressed during individual operation of the oper-

ating part, present operating part is stopped and the applicable operation

for the pressed key will start.

• Press the ‘Heavy’ + ‘Delicate’ + ‘Power’ buttons at the same time for two seconds to enter Service Inspection Mode.

• All LEDs are displayed for the first two seconds and then Software-Ver. will be indicated.

• You can change the mode by pressing the Normal button again. If press the Normal button in this mode, the modewill be changed to next mode.

• If you want to activate a mode while operating the dishwasher, the door must be closed.

• If ‘LE’ , ‘OE’, ‘tE’ error occur, enter Service Inspection Mode after resolving it.Service Inspection Mode is described in the following table.

Thermistor

Resistance (kΩ) Temp. (ºF)Resistance

(kΩ)Temp. (ºF)

125.78 41 26.065 104

98.323 50 21.385 11377.454 59 17.599 122

61.465 68 14.579 131

49.12 77 12.14 140

39.517 86 10.159 149

31.996 95 8.542 158

Components

Component Voltage Ω

Water Valve 120vac 1.2 KΩ

Drain Pump 120vac 22Ω

Heater 120vac 15Ω

Fan Mtr 120vac 76Ω

Disp Wax Mtr 120vac 2.3KΩ

Thermal Actuator 120vac 1.28kΩ

Half Load Mtr 120vac 3.9kΩ

Circulation Mtr 120vac 15Ω/21Ω

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Samsung DMT800 Dishwasher Fast Track Service Manual

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